Electrical fixture



' F. L. BUTLER.

ELECTRICAL FIXTURE.

APPLICATION FILED MR. 8. 1920.

F. L. Buf/er WWW/@ 51.

A TTORNEYS Patented July 12, 1921.

FRANK LOWELL. U O CHICAGO, ILLINOIS.

ELECTRICAL FIXTURE.

Specification of Letters Patent.

Patented July 12,1921.

Application filed March 8, 1920. Serial No. 364,356. 1

To all whom it may concern:

Be it known that I, FRANK LOWELL BUT- mm, a citizen of the United States, and a.

resident of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in- Electrical F ixtures, of which the following isa full, clear,

and exact description.

My invention relates to improvements 1n electric fixtures, and it consists in the combinations, constructions and arrangements here n described. and claimed;

An;ob ,ect of my invent on is to provide an electrical fixture in which means is provided for insulating electrical conducting means from the parts maintaining suchelectrical conducting means. in position.

A further object of my invention-is to provide in. a device of the type described a novel form of insulating member.

A further object of my invention is to provide'a device of the type describedthat is ornamentalin appearance, durable in construction, and thoroughly practical commercially. e

Other objects and. advantageswill appear in the following specification, and the novel features. of the inventionwill be particularly. pointed out inthe appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application, in which;

m Figure 1 is a vertical 2' central section through the device, p

5 Fig.2 is asect-ion along the line 2-2 of Fig. 1 i l I l Fig. 3 is a section along the line of Fig. 1,

F ig- 4is a section along the line 44 of Fig. 1, a

Fig. 5 is alvertical central section through a modified form of the device. i In carrying-out my invention, I makeuse of a. pipe or conduit 1, whichprojectsfrom a wall ori ceiling. A. coupling 2 has a' threaded opening 3 formed in its upper end for screwing on the threaded end 4 of the pipe or conduit 1. A socket 5 is: formed in the lower end of the coupling 2 and is adapted to receive an enlarged upper end 7 An annular member 11 ispartlydisposedwithin the annular recess 8 and; projects partly. therefrom to press upwardly against the lower. side of the enlargedend 7 of the insulating member G, thereby maintaining the latter in position. .An abutment 9 1 projects inwardly from the inside of the wall: of the socket 5 and isadapted to enter arecess 1O provided in the enlarged upper end 7 of the insulating member 6, thereby preventing the latter from being rotatably moved.

A bolt 12 has its head'13 embedded within" the insulating member 6 and a threaded shank 1 14 depending therefrom. 1 A bushing 15 has a central bore divided by a partition 16 into an. upper portion 17 and'a lower. portion 18. The upper portion. 17 is screwed on the: threaded shank 14of" the bolt 12; Thelowerportion of the bushing-15 isenlarged to form a shoulder 19 in which a slot 201s provlded; The upper end. of the bushing 15 is'threaded exteriorlyat 21 for "a purpose to be hereinafter set forth. A stem .22 has ts upper endseated within the slot (not shown) for an electric light or other electricalelelnent. An opening 28 is formed through each side of thein'ut24, as shown. in

Fig. 4. Insulated wires129 are arranged to enter the stem 22 through'clateral openings v3O provided inthe stemnear its. upper end.

Thewires' 29 extend. through thevstenik 22 and are passed through'the openings 28, extending to the socketlnotwshowvn); "A canopy 31 isslidably disposed upon' thestem 2 2 and maybe secured at any desired point:

.therealong by means ofga screw 32.

. From; the foregoing description jof the various, parts of the device, the operation thereof maybe readily understood; The insulating member 6thoroughly insulates the electrical conductingqwires :29 from the coupling 2 and the pipe or conduit l: "Consequently, current cannot pass along I the conduit 1 to thewalls nof the buildingto causefire should short circuiting occur. The

bushing 15 is threaded eXteri orlyj and is therefore adapted for screwing intoan insulatingi j oint of n. OITClHlaIY: construction a it is desired to use the bushing 15 and the parts depending therefrom with such an insulating joint.

In the modified form of the device shown in Fig. 5 of the accompanying drawings, the

construction of the parts is identical with, the construction of the form of the device illustrated in Fig. 1' with the exceptions about to be set forth, and I have thereforedesignated corresponding parts throughout by the same reference numerals.

,Instead of the bushing 15 I provide a bushing 40 which has a smaller threaded central bore l1 adapted for, screwing on the threaded shank of the'bolt 12. The bushing 40 has a larger threaded central bore 42 adaptedato receive the threaded end of a pipe 43. .A nut 44: is screwed on the lower end of the pipe 43 and is provided with-a flanged shoulder 45 adapted to support a canopy 4:6. It will be obvious thatwhen the nut 44 is screwed on the end: of the pipe 43, the canopy 46 will be pushed tightly against acceilingor wall and held firmly in posi- ;tion. A plurality of links 47 are secured to thesides of the canopy 46.

'means (not shown) for chandeliers and the like-are suspended from the links 47.

Supporting The device is simple in construction, ornamental in'appearance, and provides an efliclent means for preventing an electrical currentfrom passing into the walls of a'build- 'ing in which installed. p f "-I-clainn- I 1. In an electrical fixture, a fixed supportingmember, a coupling having its upper end-secured thereto, said coupling having a socket formed ln'its lower end, an insulatingmember havingan enlarged top portion,

said top portion being disposed within said socket,'an abutment projectingfrom the inside of said socket and arranged to entera recess provided in the upper portion of said insulating member to prevent the latter from belng rotatably moved, a spring mernber partly disposed within an annular recess in the lnner surface of said socket at a point immediately beneath the enlarged por- -t1on of said insulating member, whereby said insulating member is maintained inpo- V sition, a bolt having a non-circular head em- "f'bedded'in said insulatlng'member" and arranged to dependtherefrom,=a bushing'hav- 1Il'g its upper endsecured to the depending "5,5

,endfof said bolt, said bushing having its lower end formed into a shoulder, a;stem

.havingfits upper end seated against said W .shoulder,'said stem having lateral openings therethrough near its upper end, a rod having its upperend secured to the lower end .ofsald bushing and. being arranged to ex tend through saidstem, a nut screwedn the lowerend of said rod, said nut being provided with a shoulder adapted to support the lower, end Of-Sttld' stem, an eye member,

nut.

formed integral with said nut, a canopy shdably disposed on said stem, means for i securingsaid canopy in position along said "stem, and current carrying wires arranged to enter sald stem through said lateral openside of said socket and arranged to enter a recess provided in the upper portion ofsaid insulating member to prevent the latter from being rotatably moved, a spring member partly disposedwithin'an annular recess in the inner surface of said'socket at a point immediately beneath the enlarged portion of said insulating member, whereby-said insulating member is maintained in position, a'

bolt having anon-circular head embedded-in said insulating member and arranged toldepend therefrom, a'bushing having its upper end securedto the depending end of said bolt, said bushing being'threaded both"in teriorly and exteriorly and having its lower end formedinto a flanged shoulder, a stem having its upper end seated against said shoulder, said stemhaving lateral openings therethrough, near'its upper end, a'rod'having its upper end secured to the lower end of said bushing andlbeing arranged to extend through said stem, a nut screwed on the lower end ofsaid rod, said nut being provided with a shoulder adapted to support the lower end of said stem, an eye memberformed integral with. said nut, a canopy slidablv dlsposed on said stem, means for securing said canopyinposition along said stem, and current carrying wires arranged to enter said stem through said lateral openings and H to pass from said stem through diametrically opposed openingsprovided through said 3. In an electrical fixture, the combination of a fixed supporting .member, a coupling secured thereto, saidf coupling being provided with 'a socket in its lower, end, anlinsulating member having; an enlarged top portion disposed within said socket, an abutmen't projecting from' the inside of said socket arranged to enter arecess provided in sa'id insulating member to prevent the latter from being rOtatably' moved, means for maintaining saidfinsulating member; in engagement with said socket, a bolt having its head embedded in said insulating memher and arranged to'depend therefrom, and ;means carried by said bolt for supporting an electrical socket or the like.

4;. In an electrical' fixture, the combination of a fixed supporting member, a coupling secured thereto, said coupling being provided with-a socket in its lower end, an insulating member having an enlarged top portion, said top portion being disposed within said socket, an abutment projecting from said socket and positioned to enter a recess provided in said insulating member to prevent the latter from being rotatably moved, means for maintaining the enlarged top portion of said insulating member with-, in said socket, a bolt having a non-circular head embedded in said insulating member and arranged to depend therefrom, a bushing secured to the depending end of said bolt, a stem having its upper end seated against said bushing, said stem being formed with lateral openings therethrough near its upper end, a rod having its upper end secured to said bushing and being arranged to 20 sides, a canopy slidably disposed on said 25 stem, and electrical conducting wires arranged to enter said stem through said I lateral openings and to pass from said stem through the slots provided in said nut. I FRANK LOWELL BUTLER. 

